"jjs" wrote in message
...
I will let Hemi give the optical metrics required to resolve a "logo on
the side of a truck", or license plate, or any image with angular
requisites from a sattelite. Remember, back in the sixties they actually
had to drop the film magazines from space to be caught by aircraft with
tailhooks. I truly doubt teraserver's technology uses 60's tech.


Don't forget the advantages of having those optics in a vacuum and the path
from subject to optic is influenced by an ever decreasing proportion of
atmospheric interference.